[FR] Docker Support

[DudeShift]

Is your feature request related to a problem? Please describe.
Create a docker image for new users to test/use this music bot via docker containers. I have been looking for a good music bot that has slash commands and react buttons for a "now playing" message from the bot to allow ease of use. Using docker has been a great way to quickly test and deploy discord bots.

"Working" Solution
I pulled the repo, modified the config.yml with bot info, then added a Dockerfile (which was mainly based off of nizewn/Dodong Discord Music Bot):

FROM node:18-alpine AS BUILD
WORKDIR /build
COPY . /build
RUN npm install --production

FROM node:18-alpine
LABEL MAINTAINER="melody" DESCRIPTION="Discord music bot with many useful commands and effects."
WORKDIR /bot
COPY --from=BUILD /usr/lib/ /usr/lib/
COPY --from=BUILD /lib/ /lib/
COPY --from=BUILD /build/ /bot
ENV NODE_ENV production
CMD ["node", "./src/bot.js"]

Created an image using docker build -t melody . then created a container docker run -d -it --name melody --restart unless-stopped melody

Describe the solution you'd like
I am not an expert at docker but a better way would be either passing in the bot token as a environment variable or mapping of a working volume for docker.

codetheweb/muse Discord Music Bot has an example of using environment variable.

Bas-Korver/docker-jmusicbot is an example of someone making a docker version of jmusicbot by basically mapping the directory of the config file for the bot with docker-compose.

Again, I am no expert at docker and mainly get by with scraping together information from different github docker projects.

[NerdyTechy]

I’m by no means an expert with Docker, but I’ll definitely look into this because it seems like a nice feature to have. Thanks for the suggestion!